English, asked by kv93142, 1 year ago

write a story on what if time doesn't exist

Answers

Answered by afnanbaig46

Explanation:

According to theoretical physicist Carlo Rovelli, time is an illusion: our naive perception of its flow doesn’t correspond to physical reality. Indeed, as Rovelli argues in The Order of Time, much more is illusory, including Isaac Newton’s picture of a universally ticking clock. Even Albert Einstein’s relativistic space-time — an elastic manifold that contorts so that local times differ depending on one’s relative speed or proximity to a mass — is just an effective simplification.

So what does Rovelli think is really going on? He posits that reality is just a complex network of events onto which we project sequences of past, present and future. The whole Universe obeys the laws of quantum mechanics and thermodynamics, out of which time emerges.

Rovelli is one of the creators and champions of loop quantum gravity theory, one of several ongoing attempts to marry quantum mechanics with general relativity. In contrast to the better-known string theory, loop quantum gravity does not attempt to be a ‘theory of everything’ out of which we can generate all of particle physics and gravitation. Nevertheless, its agenda of joining up these two fundamentally differing laws is incredibly ambitious.

Alongside and inspired by his work in quantum gravity, Rovelli puts forward the idea of ‘physics without time’. This stems from the fact that some equations of quantum gravity (such as the Wheeler–DeWitt equation, which assigns quantum states to the Universe) can be written without any reference to time at all.

As Rovelli explains, the apparent existence of time — in our perceptions and in physical descriptions, written in the mathematical languages of Newton, Einstein and Erwin Schrödinger — comes not from knowledge, but from ignorance. ‘Forward in time’ is the direction in which entropy increases, and in which we gain information.

The book is split into three parts. In the first, “The Crumbling of Time”, Rovelli attempts to show how established physics theories deconstruct our common-sense ideas. Einstein showed us that time is just a fourth dimension and that there is nothing special about ‘now’; even ‘past’ and ‘future’ are not always well defined. The malleability of space and time mean that two events occurring far apart might even happen in one order when viewed by one observer, and in the opposite order when viewed by another.

Rovelli gives good descriptions of the classical physics of Newton and Ludwig Boltzmann, and of modern physics through the lenses of Einstein and quantum mechanics. There are parallels with thermodynamics and Bayesian probability theory, which both rely on the concept of entropy, and might therefore be used to argue that the flow of time is a subjective feature of the Universe, not an objective part of the physical description.

But I quibble with the details of some of Rovelli’s pronouncements. For example, it is far from certain that space-time is quantized, in the sense of space and time being packaged in minimal lengths or periods (the Planck length or time). Rather, our understanding peters out at those very small intervals for which we need both quantum mechanics and relativity to explain things.

Answered by upenderjoshi28

Answer:

If time did not exist...

If time did not exist, there would be no life; there would be no big bang; there would be no formation of nebulae; there would be no formation of solar systems and galaxies.

If time did not exist, only an infinite void would be omnipresent. There would be perfect, ripple-less silence, peace, and serenity everywhere. There would be no up, no down, no left, no right, and no middle.

If time did not exist, there would be no earth, no life, no human beings, and nothing. All potential human beings, all animal and plant forms of life would exist in this silence.

Finally, God would send ripples of creation. Life would begin gyrating into nebulae and take millions of years to give shape to galaxies and solar systems.